When Awakened Awareness enters the battlefield, put X +1/+1 counters on enchanted permanent.
As long as enchanted permanent is a creature, it has base power and toughness 1/1.
{3}
Birthing Boughs
Artifact
{4}, {T}: Create a 2/2 colorless Shapeshifter creature token with changeling. (It has every creature type.)
{5}{B}{B}
Black Dragon
Creature - Dragon
Flying
Acid Breath -- When Black Dragon enters the battlefield, target creature an opponent controls gets -3/-3 until end of turn.
4 /
4
{2}{B}{B}
Bladewing's Thrall
Creature - Zombie
Bladewing's Thrall has flying as long as you control a Dragon.
When a Dragon enters the battlefield, you may return Bladewing's Thrall from your graveyard to the battlefield.
3 /
3
{2}
Blight Sickle
Artifact - Equipment
Equipped creature gets +1/+0 and has wither. (It deals damage to creatures in the form of -1/-1 counters.)
Equip {2}
{3}
Bloodline Pretender
Artifact Creature - Shapeshifter
Changeling (This card is every creature type.)
As Bloodline Pretender enters the battlefield, choose a creature type.
Whenever another creature of the chosen type enters the battlefield under your control, put a +1/+1 counter on Bloodline Pretender.
2 /
2
{5}{U}{U}
Blue Dragon
Creature - Dragon
Flying
Lightning Breath -- When Blue Dragon enters the battlefield, until your next turn, target creature an opponent controls gets -3/-0, up to one other target creature gets -2/-0, and up to one other target creature gets -1/-0.
5 /
5
{B}
Changeling Outcast
Creature - Shapeshifter
Changeling (This card is every creature type.)
Changeling Outcast can't block and can't be blocked.
1 /
1
{3}
Chronatog Totem
Artifact
{T}: Add {U}.
{1}{U}: Chronatog Totem becomes a 1/2 blue Atog artifact creature until end of turn.
{0}: Chronatog Totem gets +3/+3 until end of turn. You skip your next turn. Activate only once each turn and only if Chronatog Totem is a creature.
--
Command Tower
Land
{T}: Add one mana of any color in your commander's color identity.
--
Crucible of the Spirit Dragon
Land
{T}: Add {C}.
{1}, {T}: Put a storage counter on Crucible of the Spirit Dragon.
{T}, Remove X storage counters from Crucible of the Spirit Dragon: Add X mana in any combination of colors. Spend this mana only to cast Dragon spells or activate abilities of Dragons.
{4}{U}{U}{U}
Day of the Dragons
Enchantment
When Day of the Dragons enters the battlefield, exile all creatures you control. Then create that many 5/5 red Dragon creature tokens with flying.
When Day of the Dragons leaves the battlefield, sacrifice all Dragons you control. Then return the exiled cards to the battlefield under your control.
{5}{B}{B}
Deathbringer Regent
Creature - Dragon
Flying
When Deathbringer Regent enters the battlefield, if you cast it from your hand and there are five or more other creatures on the battlefield, destroy all other creatures.
5 /
6
{2}{U}
Deep Freeze
Enchantment - Aura
Enchant creature
Enchanted creature has base power and toughness 0/4, has defender, loses all other abilities, and is a blue Wall in addition to its other colors and types.
{2}{B}
Defenestrate
Instant
Destroy target creature without flying.
{2}{U}
Deluge
Instant
Tap all creatures without flying.
{U}
Diminish
Instant
Target creature has base power and toughness 1/1 until end of turn.
--
Dimir Aqueduct
Land
Dimir Aqueduct enters the battlefield tapped.
When Dimir Aqueduct enters the battlefield, return a land you control to its owner's hand.
{T}: Add {U}{B}.
{3}
Dimir Locket
Artifact
{T}: Add {U} or {B}.
{U/B}{U/B}{U/B}{U/B}, {T}, Sacrifice Dimir Locket: Draw two cards.
--
Dismal Backwater
Land
Dismal Backwater enters the battlefield tapped.
When Dismal Backwater enters the battlefield, you gain 1 life.
{T}: Add {U} or {B}.
{5}{U}
Draconic Lore
Instant
This spell costs {2} less to cast if you control a Dragon.
Draw three cards.
{2}{B}{B}
Drag to the Underworld
Instant
This spell costs {X} less to cast, where X is your devotion to black. (Each {B} in the mana costs of permanents you control counts toward your devotion to black.)
Destroy target creature.
{3}
Dragon's Hoard
Artifact
Whenever a Dragon enters the battlefield under your control, put a gold counter on Dragon's Hoard.
{T}, Remove a gold counter from Dragon's Hoard: Draw a card.
{T}: Add one mana of any color.
{4}
Dragonloft Idol
Artifact Creature - Gargoyle
As long as you control a Dragon, Dragonloft Idol gets +1/+1 and has flying and trample.
3 /
3
{4}{U}{U}
Dragonlord's Prerogative
Instant
As an additional cost to cast this spell, you may reveal a Dragon card from your hand.
If you revealed a Dragon card or controlled a Dragon as you cast this spell, this spell can't be countered.
Draw four cards.
{3}{U}
Engulf the Shore
Instant
Return to their owners' hands all creatures with toughness less than or equal to the number of Islands you control.
{4}{B}
Fearsome Awakening
Sorcery
Return target creature card from your graveyard to the battlefield. If it's a Dragon, put two +1/+1 counters on it.
{2}{U}
Feywild Visitor
Legendary Enchantment - Background
Commander creatures you own have "Whenever one or more nontoken creatures you control deal combat damage to a player, you create a 1/1 blue Faerie Dragon creature token with flying."
{2}{B}
Foul-Tongue Invocation
Instant
As an additional cost to cast this spell, you may reveal a Dragon card from your hand.
Target player sacrifices a creature. If you revealed a Dragon card or controlled a Dragon as you cast this spell, you gain 4 life.
{1}{U}
Frogify
Enchantment - Aura
Enchant creature
Enchanted creature loses all abilities and is a blue Frog creature with base power and toughness 1/1. (It loses all other card types and creature types.)
{3}{B}
Graveshifter
Creature - Shapeshifter
Changeling (This card is every creature type.)
When Graveshifter enters the battlefield, you may return target creature card from your graveyard to your hand.
2 /
2
{2}{U}
Ichthyomorphosis
Enchantment - Aura
Enchant creature
Enchanted creature loses all abilities and is a blue Fish with base power and toughness 0/1.
--
Island
Basic Land - Island
({T}: Add {U}.)
--
Island
Basic Land - Island
({T}: Add {U}.)
--
Island
Basic Land - Island
({T}: Add {U}.)
--
Island
Basic Land - Island
({T}: Add {U}.)
--
Island
Basic Land - Island
({T}: Add {U}.)
--
Island
Basic Land - Island
({T}: Add {U}.)
--
Island
Basic Land - Island
({T}: Add {U}.)
--
Island
Basic Land - Island
({T}: Add {U}.)
--
Island
Basic Land - Island
({T}: Add {U}.)
--
Island
Basic Land - Island
({T}: Add {U}.)
--
Island
Basic Land - Island
({T}: Add {U}.)
--
Island
Basic Land - Island
({T}: Add {U}.)
--
Island
Basic Land - Island
({T}: Add {U}.)
--
Island
Basic Land - Island
({T}: Add {U}.)
--
Island
Basic Land - Island
({T}: Add {U}.)
--
Island
Basic Land - Island
({T}: Add {U}.)
--
Island
Basic Land - Island
({T}: Add {U}.)
--
Island
Basic Land - Island
({T}: Add {U}.)
--
Island
Basic Land - Island
({T}: Add {U}.)
{3}{U}{U}
Juvenile Mist Dragon
Creature - Dragon
Flying
Confounding Clouds -- When Juvenile Mist Dragon enters the battlefield, for each opponent, tap up to one target creature that player controls. Each of those creatures doesn't untap during its controller's next untap step.
4 /
3
{1}{U}
Kasmina's Transmutation
Enchantment - Aura
Enchant creature
Enchanted creature loses all abilities and has base power and toughness 1/1.
{2}{U}
Lapis Orb of Dragonkind
Artifact
{T}: Add {U}. When you spend this mana to cast a Dragon creature spell, scry 2. (Look at the top two cards of your library, then put any number of them on the bottom of your library and the rest on top in any order.)
{1}{U}
Mass Diminish
Sorcery
Until your next turn, creatures target player controls have base power and toughness 1/1.
Flashback {3}{U} (You may cast this card from your graveyard for its flashback cost. Then exile it.)
{1}{U}
Mercurial Transformation
Sorcery - Lesson
Until end of turn, target nonland permanent loses all abilities and becomes your choice of a blue Frog creature with base power and toughness 1/1 or a blue Octopus creature with base power and toughness 4/4.
{7}
Meteor Golem
Artifact Creature - Golem
When Meteor Golem enters the battlefield, destroy target nonland permanent an opponent controls.
3 /
3
{4}{U}{U}
Mindscour Dragon
Creature - Dragon
Flying
Whenever Mindscour Dragon deals combat damage to an opponent, target player mills four cards.
4 /
4
{2}{B}
Moonglove Changeling
Creature - Shapeshifter
Changeling (This card is every creature type.)
{B}: Moonglove Changeling gains deathtouch until end of turn. (Any amount of damage it deals to a creature is enough to destroy that creature.)
2 /
2
{1}{B}{B}
Murder
Instant
Destroy target creature.
{3}{U}
Nimbleclaw Adept
Creature - Dragon Wizard
Bigby's Hand -- {T}: Untap two other target permanents. Activate only as a sorcery and only once each turn.
2 /
3
{4}{B}{B}
Noxious Dragon
Creature - Dragon
Flying
When Noxious Dragon dies, you may destroy target creature with mana value 3 or less.
4 /
4
{4}{U}{U}
Oceanus Dragon
Creature - Dragon
Flying
When Oceanus Dragon enters the battlefield, tap target creature an opponent controls. Goad it. (Until your next turn, that creature attacks each combat if able and attacks a player other than you if able.)
3 /
5
--
Path of Ancestry
Land
Path of Ancestry enters the battlefield tapped.
{T}: Add one mana of any color in your commander's color identity. When that mana is spent to cast a creature spell that shares a creature type with your commander, scry 1. (Look at the top card of your library. You may put that card on the bottom.)
{2}{U}{U}
Phantasmal Dragon
Creature - Dragon Illusion
Flying
When Phantasmal Dragon becomes the target of a spell or ability, sacrifice it.
{2}{U}: Target creature gains flying until end of turn.
2 /
1
{3}{U}
Renari, Merchant of Marvels
Legendary Creature - Dragon Artificer
You may cast Dragon spells and artifact spells as though they had flash.
Choose a Background (You can have a Background as a second commander.)
2 /
4
{4}{U}{B}
Ruthless Deathfang
Creature - Dragon
Flying
Whenever you sacrifice a creature, target opponent sacrifices a creature.
4 /
4
{5}{U}{U}{ // }{2}{U}
Sapphire Dragon // Psionic Pulse
Creature - Dragon // Instant - Adventure
Flying
Whenever Sapphire Dragon attacks or blocks, scry 2.
Counter target noncreature spell. (Then exile this card. You may cast the creature later from exile.)
5 /
6
{5}{B}{B}
Scourge of Nel Toth
Creature - Zombie Dragon
Flying
You may cast Scourge of Nel Toth from your graveyard by paying {B}{B} and sacrificing two creatures rather than paying its mana cost.
6 /
6
{3}
Silumgar Monument
Artifact
{T}: Add {U} or {B}.
{4}{U}{B}: Silumgar Monument becomes a 4/4 blue and black Dragon artifact creature with flying until end of turn.
{3}{U}{B}
Silumgar's Command
Instant
Choose two --
• Counter target noncreature spell.
• Return target permanent to its owner's hand.
• Target creature gets -3/-3 until end of turn.
• Destroy target planeswalker.
{U}{U}
Silumgar's Scorn
Instant
As an additional cost to cast this spell, you may reveal a Dragon card from your hand.
Counter target spell unless its controller pays {1}. If you revealed a Dragon card or controlled a Dragon as you cast this spell, counter that spell instead.
{4}{U}{B}
Silumgar, the Drifting Death
Legendary Creature - Dragon
Flying, hexproof
Whenever a Dragon you control attacks, creatures defending player controls get -1/-1 until end of turn.
3 /
7
{1}{B}
Skeletal Changeling
Creature - Shapeshifter
Changeling (This card is every creature type.)
{1}{B}: Regenerate Skeletal Changeling.
1 /
1
{6}
Steel Hellkite
Artifact Creature - Dragon
Flying
{2}: Steel Hellkite gets +1/+0 until end of turn.
{X}: Destroy each nonland permanent with mana value X whose controller was dealt combat damage by Steel Hellkite this turn. Activate only once each turn.
5 /
5
{5}{U}{U}{U}
Stormtide Leviathan
Creature - Leviathan
Islandwalk (This creature can't be blocked as long as defending player controls an Island.)
All lands are Islands in addition to their other types.
Creatures without flying or islandwalk can't attack.
8 /
8
--
Swamp
Basic Land - Swamp
({T}: Add {B}.)
--
Swamp
Basic Land - Swamp
({T}: Add {B}.)
--
Swamp
Basic Land - Swamp
({T}: Add {B}.)
--
Swamp
Basic Land - Swamp
({T}: Add {B}.)
--
Swamp
Basic Land - Swamp
({T}: Add {B}.)
--
Swamp
Basic Land - Swamp
({T}: Add {B}.)
--
Swamp
Basic Land - Swamp
({T}: Add {B}.)
--
Swamp
Basic Land - Swamp
({T}: Add {B}.)
--
Swamp
Basic Land - Swamp
({T}: Add {B}.)
--
Swamp
Basic Land - Swamp
({T}: Add {B}.)
--
Swamp
Basic Land - Swamp
({T}: Add {B}.)
--
Swamp
Basic Land - Swamp
({T}: Add {B}.)
--
Swamp
Basic Land - Swamp
({T}: Add {B}.)
{5}{U}{U}{ // }{1}{U}
Sword Coast Serpent // Capsizing Wave
Creature - Serpent Dragon // Instant - Adventure
Sword Coast Serpent can't be blocked as long as you've cast a noncreature spell this turn.
Return target creature to its owner's hand. (Then exile this card. You may cast the creature later from exile.)
6 /
6
--
Temple of Deceit
Land
Temple of Deceit enters the battlefield tapped.
When Temple of Deceit enters the battlefield, scry 1.
{T}: Add {U} or {B}.
--
Temple of the Dragon Queen
Land
As Temple of the Dragon Queen enters the battlefield, you may reveal a Dragon card from your hand. Temple of the Dragon Queen enters the battlefield tapped unless you revealed a Dragon card this way or you control a Dragon.
As Temple of the Dragon Queen enters the battlefield, choose a color.
{T}: Add one mana of the chosen color.
{1}{U}
Tidal Surge
Sorcery
Tap up to three target creatures without flying.
{4}{B}{B}{ // }{1}{B}
Topaz Dragon // Entropic Cloud
Creature - Dragon // Instant - Adventure
Flying, deathtouch
Creatures you control gain deathtouch until end of turn. (Then exile this card. You may cast the creature later from exile.)
4 /
4
{1}{U}
Turn to Frog
Instant
Until end of turn, target creature loses all abilities and becomes a blue Frog with base power and toughness 1/1.
{1}{U}
Twisted Reflection
Instant
Choose one --
• Target creature gets -6/-0 until end of turn.
• Switch target creature's power and toughness until end of turn.
Entwine {B} (Choose both if you pay the entwine cost.)
{2}{B}
Venomous Changeling
Creature - Shapeshifter
Changeling (This card is every creature type.)
Deathtouch
1 /
3
{U}
Witness Protection
Enchantment - Aura
Enchant creature
Enchanted creature loses all abilities and is a green and white Citizen creature with base power and toughness 1/1 named Legitimate Businessperson. (It loses all other colors, card types, creature types, and names.)